When the ball hits the ground, the height is 0.
0 = 100 - 16t²
0 = (10 - 4t)(10 + 4t)
0 = 10 - 4t or 0 = 10 + 4t
4t = 10 or -4t = 10
t =
or t = 
Time cannot be negative (unless you have a time machine) so disregard 
Answer: t =
= 2.5 seconds
Answer:
C
Step-by-step explanation:
I think it is C. Sorry if I'm wrong.
The answer is 127.16 pi m³, hope this helps.
The only math term I can think of is geometry and it means when a solid is cut through parallel to the base.
EDIT: After further research since it was all I could think of. This is the only math term for what you are looking for.
Answer:
⁶√2
Step-by-step explanation:
∛4 = (2^2)^1/3 = 2^2/3
So ∛4 / √2
= 2^2/3 / 2^1/2
= 2^1/6
= ⁶√2